Managing the upcoming ubiquitous computing
Proceedings of the 8th International Conference on Network and Service Management
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The analysis and evaluation of new wireless network protocols is a long process that requires mathematical analysis, simulations, and increasingly experimentations under real conditions. Measurements are essential to analyze the performance of wireless protocols such as IEEE 802.11 networks in real environments, but experimentations are complex to perform and analyze. Usually, network researchers develop their own tools, sometimes from scratch, to fit the requirements of their experimentations, and these tools are then abandoned when the paper is published. In this study, we emphasize the importance, for the network research community, to use and contribute to the development of open source measurement tools. In this regard, we propose a survey and classification of IEEE 802.11 wireless parameters and open source tools available to collect or estimate these parameters. We highlight the parameters that can be extracted from wireless traffic probes and those that are available through the driver of wireless cards. Then, we introduce and compare open source tools that can be used to make the measurements, with special attention to the flexibility of the tools and their application scope. Finally, we discuss with several case studies the combination of tools that best suit the needs of the wireless experiments and provide a list of common pitfalls to avoid.